#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int n = 100;
	float f;
	double d;
	f = n + 2.5;
	printf("f=%f\n", f);
	n = f / 2;
	printf("n=%d\n", n);
	n = (1 / 2) * f;
	printf("n=%d\n", n);
	d = f * 2;
	printf("d=%lf\n", d);
	return 0;
}